With the acceleration of the aging process and change in social lifestyle， the prevalence rate of late-life depression （LLD） in the elderly is increasing year by year. As the most common mental disorder in the elderly， LLD seriously affects the quality of life of patients， and thus brings a heavy burden to the family and society. It may even become life-threatening for the elderly patients. The pathogenesis of LLD is still unclear， which may be caused by a combination effects of biological， social and psychological factor. Given the declined body functions and more comorbid physical diseases in the elderly population， the diagnosis and treatment of LLD patients would be different from that of younger adult patients with depression. This paper reviews the epidemiological characteristics， clinical evaluation， diagnosis， comorbidity， treatment and intervention of LLD， and focuses on the selection of therapeutic drugs and adverse reactions， in order to provide references for better diagnosis and treatment of LLD and improve the prognosis of patients.

OBJECTIVE:To provide reference for the safe and rational drug use for children. METHODS:Information manage-ment system was used to investigate the use of essential medicines system variety in stock in 2015 and analyze the medication infor-mation for children in the drug instructionsin our hospital in 2015. RESULTS:Only 201 kinds of medicines belonged to children’s medicines in all the 685 kinds of medicines in our hospital. And 89 kinds (44.28%) of medicines belonged to essential medicine system among the 201 kinds of children’s medicines,in which,78 (87.60%) showed complete medication information for chil-dren;112 kinds(55.72%)of medicines belonged to non-essential medicine system,in which,38(33.93%)showed complete medi-cation information for children. The proportions of showing complete medication information for children in the essential medicines and in its chemicals,biological products,injections and oral preparations were higher than non-essential medicines,the differences were statistically significant(P<0.05). Only 41 kinds of medicines belonged to child-specific medicines among the 201 children’s medicines;62 showed complete medication information for children in the 73 kinds of essential medicines among the non-child-spe-cific medicines;only 13 showed complete medication information for children in the 87 kinds of non-essential medicines,the pro-portion of showing complete medication information for children in essential medicines among the non-child-specific medicines was higher than non-essential medicines,the difference was statistically significant(P<0.05). CONCLUSIONS:The use proportion of essential medicine system variety for children’s medicines is high in our hospital;but there are lacking of child-specific medicines and the medication information for children is insufficient. However,compared with non-essential medicines for children,the essen-tial medicines show better medication information for children in aspects of types,dosage form distribution and non-child-specific medicines,and it is suitable for children.

Objective To explore the characteristic of memory impairment and its relationship with Nmethyl-D-aspartate receptor 2B (NR2B) expression in alcohol dependence patients,in order to provide an unprecedented view of alcohol-associated memory impairment therapy.Methods Participants (n=67) included 35 alcohol dependence patients and 32 matched healthy controls.Wechsler memory scale (WMS) was used to access the memory.The expression levels of NR2B were detected with quantitative reverse transcription-polymerase chain reaction (qRT-PCR).Results Compared with the memory quotient(MQ) of controls(69.45±8.96),that of alcohol dependence patients(50.59±8.64) significantly decreased (t=-6.08,P＜0.01).Compared with the NR2B expression level of controls (1.00-0.00),that of alcohol dependence patients (3.52 ± 1.17) significantly increased (t =9.67,P＜0.01).MQ was negatively correlated with the levels of NR2B expression (r=-0.44,P＜0.05).Conclusion Alcohol dependence patients suffer memory impairment detected by WMS,and modulate NR2B expression may improve the memory.

Objective To explore the difference of sleep quality and the influencing factors in ketamine dependent subjects and methamphetamine dependent subjects.Methods 60 ketamine dependent subjects and 60 methamphetamine dependent subjects with Pittsburgh sleep quality index (PSQI),self-rating depression scale (SDS),self-rating anxiety scale (SAS) were tested.Results Methamphetamine dependent subjects was significantly more likely to elicit poor sleep quality than ketamine dependent subjects (P =0.022).The sleep quality of ketamine dependent subjects had a positive correlation with anxiety(P =0.015),depression(P =0.038),the onset age (P =0.029),and the dose of ketamine use in the last three months (P =0.048),while the sleep quality of methamphetamine dependent subjects had a positive correlation with the total time of ketamine use (P =0.038),anxiety (P =0.041),the dose of ketamine use in the last three months (P =0.011).Conclusion Methamphetamine dependent subjects are prone to a more serious poor sleep quality than ketamine dependent subjects.

ObjectiveTo investigate the effect of rhPTH (1-34) and elcatonin on bone metabolism and serum secreted protein acidic and rich in cysteine ( SPARC ) in postmenopausal women with osteoporosis.Methods One hundred and twenty-four postmenopausal women with osteoporosis were randomly divided into 2 groups:One group was treated with recombinant human parathyroid hormone ( 1-34 ) [ rhPTH ( 1-34 ) ] 200 U/d by subcutaneous injection (PTH group,n =89 )and another group was treated with elcatonin 20 U/week by intramuscular injection (CT group,n =35 ) for 12 months.All patients received a basic therapy with oral calcium ( Ca 600 mg+ Vit D3125 U,q..d.).The bone mineral density ( BMD ) of lumbar spine( L2-4 ),the left femoral neck,greater trochanter,and Ward's triangle,serum calcium and phosphate were measured by baseline,6 months' and 12 months.Levels of serum bone-specific alkaline phosphatase( BSAP),serum secreted protein acidic and rich in cysteine (SPARC)were determined by an ELISA assay.ResultsBy 12 months,rhPTH ( 1-34 ) treatment significantly increased the lumbar spine L2-4 BMD 7.9％ (P＜0.05),serum calcium 8.3 ％ ( P＜ 0.05 ),serum BSAP 93.4％ ( P＜ 0.05 ),serum SPARC by 12.6％[ ( 195.68±59.57 vs 173.81 ±81.33 ) pμg/L,P＜0.05 ].Elcatonin therapy increased the lumbar spine L2-4 BMD by 3.2％ (P＜0.05) at the end of 12 months,but elcatonin did not influence serum calcium,BSAP and SPARC.The rhPTH( 1-34 ) increased lumbar spine L2-4 BMD more than elcatonin did at 12 months( P＜0.05 ).ConclusionrhPTH (1-34) could promote the bone anabolism more effectively than elcatonin did.Serum SPARC may play an important role in promoting osteogenesis by rhPTH.

The self-renewal and multipotent potentials in neural stem cells (NSCs) maintain the normal physiological functions of central nervous system (CNS). The abnormal differentiation of NSCs would lead to CNS disorders. However, the mechanisms of how NSCs differentiate into astrocytes, oligodendrocytes (OLs) and neurons are still unclear, which is mainly due to the complexity of differentiation processes and the limitation of the cell separation method. In this study, we modeled the dynamics of neural cell interactions in a systemic approach by mining the high-throughput genomic and proteomic data, and identified 8615 genes that are involved in various biological processes and functions with significant changes during the differentiation processes. A total of 1559 genes are specifically expressed in neural cells, in which 242 genes are NSC specific, 215 are astrocyte specific, 551 are OL specific, and 563 are neuron specific. In addition, we proposed 57 transcriptional regulators specifically expressed in NSCs may play essential roles in the development courses. These findings provide more comprehensive analysis for better understanding the endogenous mechanisms of NSC fate determination.
Animals ; Astrocytes ; cytology ; metabolism ; Cell Differentiation ; genetics ; Gene Expression Profiling ; Gene Regulatory Networks ; Mice ; Neural Stem Cells ; cytology ; metabolism ; Oligodendroglia ; cytology ; metabolism ; Protein Interaction Mapping

Objective To explore what brain regions are modulated by heroin addiction and withdrawal.MethodsWe used functional magnetic resonance imaging to investigate the brain function in 15 heroin-dependent patients 3 days (acute) and 1 month (protracted) after heroin abstinence.Sixteen normal controls were included.Results The blood oxygen level-dependent signal in the orbitofrontal cortex of the brain of heroin-dependent patients was significantly elevated 3 days after the withdrawal.Hyperfunction of the orbitofrontal cortex declined 1 month after the withdrawal.Conclusion Heroin-dependent subjects at both 3 days and 1 month abstinence have persistent abnormalities in the brain function.Although some tangible beneficial effects are noted following 1month of detoxification,possible permanent damage to the brain caused by heroin use is suggested.

Objective To examine white matter integrity in heroin-dependent patients and matched normal controls with diffusion tensor imaging (DTI).Methods The fractional anisotropy was compared between 15 heroin-dependent patients and 15 controls.Results We found the fractional anisotropy was significantly decreased in specific brain regions of the heroin-dependent patients (P ＜ 0.001 uncorrected),including the frontal gyrus,the parietal lobule,the insula,and the corpus callosum.Conclusion The presence of microstructural abnormality is found in the white matter of several brain regions of heroin-dependent patients.

ObjectiveTo investigate the effects of nicotine exposure and ethanol-preferring behavior on mRNA expression of some nAChR subunits in the rat ventral tegmental area(VTA) and to explore possible mechanisms of dependence on tobacco and alcohol.Methods39 male Wistar rats,35-day-old,were randomly divided into an experimental group (group N,n=20) and a control group (group C,n=19).Rats in group N were treated with nicotine ( 1.0 mg · kg -1 · d -1 ) by subcutaneous injection while in group C with saline both for 10 days,after which 6 rats (respectively group NE,n =6,group CE,n =6 )were drawn randomly from each group and killed by cutting off the head.mRNA was extracted from the VTA tissue,and the expression of nAChR subunits,including α4,α5,α7 and β2,were examined by Real Time-PCR.Other rats both in groups N and C ( respectively group NA,n=14,group CA,n=13) were induced for 69 days to establish two-bottle free choice alcohol-preferring behavior model by Samson sucrose fading program from 60-day-old on.The same indexes mentioned above were detected by the same methods in the VTA tissue.Results① The factor analysis showed that both the two factors,nicotine and alcohol-preferring behavior,showed regulating effects on the expression of nAChR subunits α4 and α5 ( respectively F was 6.13,5.407,5.186,7.132,P ＜ 0.05 ),and the factor,alcohol-preferring behavior,on subunit β2 (F =5.896,P＜0.05) ; the two factors exhibited strong interaction on the expression of subunit α7 (F=13.894,P＜0.001 ),and some interaction on subunits α5 and β2 (respectively F was 6.149,4.222,P＜0.05 ).② The mRNA expression of nAChR subunits α4,α5,α7,and β2 were significantly up-regulated by different degrees in group NA compared to group CA ( respectively Fwas 7.941,13.517,17.438,9.272,respectively P ＜ 0.05,P ＜ 0.05,P ＜ 0.01,P ＜ 0.01 ),the expression level of subunits α4,α5,α7 and β2 were significantly higher in different degrees in group NA than in group NE( respectively F was 5.293,8.500,6.149,4.837,P ＜0.05) ; while subunit α7 was significantly down-regulated in group CA compared to group CE (F =12.750,P ＜0.01 ).ConclusionNicotine and ethanol co-affect on the nAChR subtype comprised of subunits α4,α5,α7 and β2.

OBJECTIVE: To explore the attitudes of medical students toward psychiatry. METHODS: A total of 254 fourth-year medical students were investigated with a 29-item questionnaire. RESULTS: Although in general, medical school students showed a positive attitude towards psychiatry, opinions about certain aspects like the reputation of psychiatry and the attitude toward psychiatric therapy were not positive. CONCLUSION There are still some misunderstandings for psychiatry among medical school students, some of which are based on false beliefs that should be actively targeted for remediation.
Attitude of Health Personnel ; Career Choice ; China ; Female ; Humans ; Male ; Psychiatry ; education ; Specialization ; Students, Medical ; psychology ; Surveys and Questionnaires ; Young Adult